.page-faq {
  --faq-stripe: repeating-linear-gradient(90deg, var(--red) 0 12px, var(--white) 12px 24px);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  padding: 22px 0 0;
  font-size: 13px;
  color: var(--on-night);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--navy);
  color: var(--white);
  padding-bottom: 46px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--faq-stripe);
  opacity: .92;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 30px;
  right: -140px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, .20), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 26px;
  padding-top: 34px;
}

.page-faq .faq-hero .eyebrow {
  margin: 0;
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-size: 33px;
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-faq .faq-hero .lede {
  margin: 16px 0 0;
  max-width: 48ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--on-night);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero-side {
  padding: 22px 20px;
  border-radius: var(--radius-lg);
  background: var(--navy-2);
  border: 1px solid rgba(124, 224, 255, .24);
  box-shadow: var(--shadow-float);
}

.page-faq .faq-side-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-side-time {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 38px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-faq .faq-side-time span {
  padding: 0 3px;
  color: var(--red);
}

.page-faq .faq-side-note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--on-night);
}

.page-faq .faq-side-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid rgba(255, 255, 255, .14);
  display: grid;
  gap: 14px;
}

.page-faq .faq-side-list li {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--on-night);
}

.page-faq .faq-side-list strong {
  display: block;
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--white);
  word-break: break-all;
}

/* ---------- 分段切换 ---------- */
.page-faq .faq-groups {
  padding: 34px 0 60px;
  background: var(--white);
}

.page-faq .tab-list {
  display: flex;
  gap: 6px;
  margin: 0 0 26px;
  padding: 6px;
  border-radius: var(--radius-pill);
  background: var(--mist);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-faq .tab-list::-webkit-scrollbar {
  display: none;
}

.page-faq .tab {
  appearance: none;
  flex: 0 0 auto;
  padding: 11px 16px;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--slate);
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .tab[aria-selected="true"] {
  background: var(--red);
  color: var(--white);
  box-shadow: 0 8px 20px var(--red-glow);
}

.page-faq .tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .tab-panel {
  animation: faq-panel-in .24s var(--ease);
}

.page-faq .tab-panel[hidden] {
  display: none;
}

.page-faq .tab-panel:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 6px;
  border-radius: var(--radius-md);
}

@keyframes faq-panel-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  position: relative;
  margin: 0 0 24px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--navy);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.92) contrast(1.06);
}

.page-faq .faq-figure figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 30px 16px 14px;
  background: linear-gradient(transparent, rgba(11, 31, 58, .88));
  color: rgba(255, 255, 255, .86);
  font-size: 12.5px;
  line-height: 1.6;
}

/* ---------- 问答列表 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 12px;
  max-width: 880px;
}

.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
  overflow: hidden;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .qa[open] {
  border-color: rgba(200, 16, 46, .45);
  box-shadow: var(--shadow-card);
}

.page-faq .qa-q {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .qa-q::-webkit-details-marker {
  display: none;
}

.page-faq .qa-q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--red);
}

.page-faq .qa[open] .qa-q::after {
  content: "–";
}

.page-faq .qa-q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .qa-body {
  margin: 0 18px 18px;
  padding-left: 14px;
  border-left: 3px solid var(--red);
  animation: faq-reveal .24s var(--ease);
}

@keyframes faq-reveal {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

.page-faq .qa-answer {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .qa-answer a {
  color: var(--red);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-faq .qa-answer a:hover {
  color: var(--red-deep);
}

.page-faq .qa-note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 步骤清单 ---------- */
.page-faq .step-list {
  list-style: none;
  counter-reset: faq-step;
  margin: 0;
  padding: 0;
}

.page-faq .step-list li {
  position: relative;
  counter-increment: faq-step;
  padding: 11px 0 11px 40px;
  border-bottom: 1px solid var(--cyan-soft);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .step-list li:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.page-faq .step-list li:first-child {
  padding-top: 4px;
}

.page-faq .step-list li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 11px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--red);
}

.page-faq .step-list li:first-child::before {
  top: 4px;
}

/* ---------- 分组分隔条 ---------- */
.page-faq .faq-rule {
  height: 3px;
  max-width: 880px;
  margin: 32px 0 0;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--red) 0%, rgba(200, 16, 46, .28) 42%, rgba(0, 229, 255, .4) 100%);
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-help {
  position: relative;
  overflow: hidden;
  padding: 52px 0 60px;
  background: var(--navy);
  color: var(--white);
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--faq-stripe);
  opacity: .85;
}

.page-faq .faq-help .grid {
  position: relative;
  z-index: 1;
  gap: 30px;
}

.page-faq .faq-help .eyebrow {
  margin: 0;
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: .16em;
}

.page-faq .faq-help h2 {
  margin: 12px 0 16px;
  font-size: 26px;
  line-height: 1.24;
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-faq .faq-help p {
  margin: 0 0 16px;
  max-width: 54ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--on-night);
}

.page-faq .faq-help .help-note {
  margin-bottom: 0;
  font-size: 13px;
  color: rgba(255, 255, 255, .58);
}

.page-faq .faq-jump {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
}

.page-faq .faq-jump a {
  display: inline-block;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(124, 224, 255, .34);
  color: var(--cyan-soft);
  font-size: 13px;
  text-decoration: none;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-jump a:hover {
  background: var(--cyan);
  color: var(--navy);
}

.page-faq .help-channels {
  list-style: none;
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 24px 20px;
  border-radius: var(--radius-lg);
  background: var(--navy-2);
  border: 1px solid rgba(124, 224, 255, .22);
  box-shadow: var(--shadow-float);
}

.page-faq .help-channels li {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--on-night);
}

.page-faq .help-channels strong {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--white);
  word-break: break-all;
}

.page-faq .help-channels .help-addr {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  word-break: break-word;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-faq .qa-q {
    font-size: 16px;
    padding: 18px 22px;
  }

  .page-faq .qa-body {
    margin: 0 22px 20px;
    padding-left: 18px;
  }

  .page-faq .step-list li {
    font-size: 15px;
    padding-left: 46px;
  }

  .page-faq .faq-figure figcaption {
    padding: 40px 24px 18px;
    font-size: 13px;
  }

  .page-faq .tab {
    padding: 12px 22px;
    font-size: 14px;
  }

  .page-faq .help-channels {
    padding: 28px 26px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(290px, .85fr);
    align-items: start;
    gap: 56px;
    padding-top: 56px;
  }

  .page-faq .faq-hero h1 {
    font-size: 54px;
    line-height: 1.08;
    max-width: 16ch;
  }

  .page-faq .faq-hero .lede {
    font-size: 16.5px;
  }

  .page-faq .tab-list {
    display: inline-flex;
    margin-bottom: 32px;
  }

  .page-faq .faq-groups {
    padding: 48px 0 76px;
  }

  .page-faq .faq-help {
    padding: 68px 0 76px;
  }

  .page-faq .faq-help h2 {
    font-size: 36px;
    max-width: 20ch;
  }

  .page-faq .qa-list {
    max-width: 860px;
  }
}

/* ---------- 窄屏收口 ---------- */
@media (max-width: 420px) {
  .page-faq .faq-hero h1 {
    font-size: 28px;
  }

  .page-faq .faq-side-time {
    font-size: 32px;
  }

  .page-faq .qa-q {
    font-size: 14.5px;
    padding: 14px 14px;
  }

  .page-faq .qa-body {
    margin: 0 14px 16px;
    padding-left: 12px;
  }

  .page-faq .faq-hero-actions .btn {
    width: 100%;
    text-align: center;
  }
}